Heating system.



T. H.- MONTREUIL. HEATING SYSTEM..-

APFLIUATIOII PILBDOT. 29, 1918.

l 1 03,2 1.5.' Patented July 14, 1914 ion-"iiranl STATES FRANCIS H1 MONTREUIL, OF CHICAGO, ILLINOIS, ASSIGNOR TO W'AR-REN WEBSTER do PATENT FFIE. I

COMPANY, 0F CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEATING SYSTEM.

Specification of Letters Patent.

Application lcd October 29, 1913. Serial No. 798,019.

To all whom it may concern:

Be it known that I, .FRANCIS H. MON- TREUIL, a citizen of the United States, residin' at'I Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in H eating Systems, of which thefollowmg 1s a speciiication.

l'Ihis invention relates to heating systems and hasl for its object to provide a new and i1nproved^system of this description and 1s particularly adapted for steam heating systems where steam pumps, cookers, etc., are

' run from the same boiler supplying steam for the heating system. It is customary in such systems to provide a reducinglvalve arranged to supply steam at a reduced pressure to the heating system in response to the demand for the steam in the heating system. When pumps, cookers and the like are operated from this same boiler as the heating system, and particularly where the pump is connected with the return line or air line of the system, such a system is defective in that it often happens that thecheating system takes steam from the boiler in such quantities as to reduce the pressure below that required to operate the pump and other devices, thuscausing the pump to stop, the system then becomes clogged, fails to properly heat'the building and remains in this. condition until the pump can be started up so as to clean out the heating system vand cause it to again operate properly.

One of the objects of my invention is to prevent the heating system from thus robbing the boiler and to so conserve or retain the steam in the boiler so as to maintain at all times, when the boiler is in operation, a

'steam pressure suiiicient to run the pump,l

cookers and the like.

My invention is illustrated in the accompanying drawings, wherein- Figure 1 is a diagrammatic view showing one form of my system; Fig. 2 is a sectional view showing the detailed view of the controlling valve between the boiler and the heating system.

` Like numerals refer to like throughout the several figures.

Referring now to Fig. 1, I have shown a boiler 1, provided with a steam main 2, which conducts the steam to the diiierent part-s of the heating system throughout the building. I have shown the main as proparts vided with the risers 3, connected with the radiators 4, the radiators'being also cO-nnected with the return pipes 5, connected With the pipe 6 leading to the air and water cylinder of the. pump 7, vThe pump 7 has a steam cylinder 8, which is connected by pipe 9 with the steam boiler. A conserving valve 10 is connected in the steam main 2. One form of this-valve is illustrated in Fig. l2, wherein it is shown as consisting of the movable valve pieces 11, engaging the valve seats 12, so as to control the flow of steam from the boiler side 13to the steam system side 14. The valve pieces 11 are connected with a stem 15,. which is'operated by a diaphragm in the casing 16. A pivoted lever 17 is connected with the valve stem 15 and is provided with the adjustable weight 18, which opposes the pressure of the steam in the boiler which enters the casing 16 throu h the pipe 19, said pipe communicating with the steam riser 2, or with the boiler in any .other desiredy manner. phragm and weight are so arranged that the valve pieces 11 will be 4moved to open the valve only when the pressure in the boiler rises above that necessary to operate the pump. It will be seen that before the pressure in the boiler; falls to a point too low to operate the pump, the valve will automatically close and conserve this pressure so as to insure the proper operation of the pump. The admission pipe 9 of the pump cylinder if connected with the steam main 2 is connected therewith on the boiler side of the valve 10, the exhaust 2O of the pump may be connected to the steam main 2 on the steam heating side of valve 1() and an oil separator 21 may be placed in this exhaust. The air and Water cylinder 7 of the pump may be connected by a pipe 22 with the air separating device 23, the water being returned to the boiler throu h the pipe 24.

I have described in detai a particular conis of vcourse evident that this construction may be varied in manyparticulars without departing from theV spirit of my invention. I have also shown a cooker 25 connected The diastruction embodying my invention, but it 100 with the system, said cooker being provided door 28 of the furnace. y This damper is of 110 vthe ordinary type and is worked by means of a chain 29 controlled by a diaphragm valve 30, which is connected by means of a pipe 81 with the steam main 2 on the steam heating side of the valve l0. The diaphragm valve 30 is arranged so that when the steam pressure in the steam heating system'reaehes a predetermined point this pressure actuates the valve 30 and causes the door 28 to close to shut ofi' the draft to the furnace. YVhen the pressure falls below this point the door automatically opens.

The operation of my invention is as follows: When the fire is started under the boiler, steam is generated vand when the steam reaches a pressure sufficient to oper'- ate the pump, the pump begins to Work and,

,draws air from the heating system; as the pressure of the steam rises to the predetermined point, the valve pieces 11 are moved to admit steam to the main 2 on the` steam heating side of the conserving valve, the steam then quickly passing to the different radiators. If now the pressure of the steam should fall below the predetermined point, the conserving valve will automatically close and prevent further escape of the steam into the heating system. The pump will still operate. Itv will be seen that when the steam is shutoff from the heating system it will be comparatively easy to keepl the pressure in the boiler high enough to operate the pump, because only a small amount of steam is used.y If on the other hand steam can pass freely into the heating system" at all times, it willbe seen that the* heating system robs the boiler and the pump and When the fire burns low, reduces' the pressure v*so as to stop the pump, the steam still passing into the heating system, andl as there is no means of removing the Water and air from the system, it will he seen that it then becomes clogged and the properv operation prevented.

I claim: l

A steam heating system comprising a boiler, a steam main leading therefrom, a heater connected with said main so as to be supplied with steam, a return pipeconnected With said heater, a pump connected with said return pipe, a steam pipe connecting the boiler with the pump to supply steam for operating the pump, an automatic valve in the steam heating main havin means acted upon by the steam pressure rom the boilerv to hold the valve open and means for closing the valve when the steam pressure of the boiler falls below a predetermined.

amount.

In testimony whereof, I atlix myl signature in the presence of two witnesses-thisl .21st day of October 1913.

FRANCIS H. MGNTREUIL. Witnesses:

Buss MAWHINEY, MINNIE M. LINDENAU.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, ID. G. -v 

